docs: def ddb_to_dict(item):
      # type: (Dict[str, Any]) -> Dict[str, Any]
      # TODO: narrow these types down
      """Converts a raw DynamoDB item to a native Python dictionary.
  
      :param dict item: DynamoDB item
      :returns: Native item
      :rtype: dict
      """
      deserializer = TypeDeserializer()
      return {key: deserializer.deserialize(value) for key, value in item.items()}